I've had the dubious but informative experience of living without most Western comforts for an extended period (no tv, radio, internet, very limited telephone, very limited comfort foods like chocolate, soft drinks, drinking water, hot water, etc). It helped distill what I personally need, as opposed to want.
Music, writing and books were more important to me than sport (which surprised me, much as I knew all mattered to me).
And I managed without sex for pretty decent periods of time without any real issues. Just kinda...switched off that part of my brain, I think.
Not to say I wasn't happy to see my girlfriend after a 6 month separation...lol
Also, I like my own company, but the occasional party/social gathering (plus a job where I'd be talking to people daily to some level) helped stop me from slowly going insane.